Perplexity AI — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
November 25, 2025
Last Seen
February 12, 2026

Related Threat Clusters

  • Amazon Sues Perplexity Over Automated Shopping Bot Dispute

    Amazon has escalated its dispute with Perplexity by filing a lawsuit regarding the Comet AI browser, which automates online purchases. The lawsuit follows a cease and desist letter, claiming that Perplexity's browser…

    3 articles · Updated November 18, 2025
  • Security Flaws in AI Browsers Expose Users to Prompt Injection Attacks

    AI browsers, including OpenAI's Atlas and Perplexity’s Comet, are facing significant security vulnerabilities due to prompt injection attacks. These attacks allow malicious actors to manipulate AI systems by injecting…

    11 articles · Updated November 11, 2025
  • Microsoft Alerts on AI Recommendation Poisoning Threats

    Microsoft has identified a rise in AI recommendation poisoning attacks that manipulate AI models to provide biased advice. This technique, which can affect the functionality of enterprise chatbots and other AI tools, is…

    11 articles · Updated February 12, 2026
  • HashJack Attack Exploits AI Browsers via URL Manipulation

    Cato Networks has identified a new cybersecurity vulnerability named 'HashJack' that allows attackers to manipulate AI browser assistants by embedding malicious prompts in URL fragments after the '#' symbol. This…

    11 articles · Updated November 27, 2025
  • Amazon Sues Perplexity Over AI Browser Access Dispute

    Amazon has filed a lawsuit against Perplexity, claiming that its Comet AI browser is accessing customer accounts without permission. This legal action escalates from an earlier cease-and-desist letter and raises…

    5 articles · Updated November 27, 2025

Recent Intelligence Reports

  • Microsoft: Poison AI buttons and links may betray your trust — Theregister · February 12, 2026
  • Amazon, Perplexity spar over AI agent access in hacking claims — Dailyjournal · November 27, 2025
  • HashJack attack shows AI browsers can be fooled with a simple '#' — Theregister · November 25, 2025
  • HashJack attack shows AI browsers can be fooled with a simple ‘#’ — Theregister · November 25, 2025

CVSS v3.1 Breakdown